Sport picture of the day: A backlit backhand

The position and strength of the sun in Auckland throws some beautiful natural light down on Ana Konjuh during her match against Roberta Vinci in the ASB Classic. Only four days after her 16th birthday and in her first match at WTA level, Konjuh pulled off a major upset by beating Vinci 3-6, 6-4, 6-2. The teenager, who won the Australian Open and US Open junior singles titles in 2013, came from behind to stun her more experienced opponent, who is seeded 245 places above her

Ana Konjuh plays a backhand during her victory over Roberta Vinci on day two of the ASB Classic in Auckland, New Zealand
Illustration: Anthony Au-Yeung/Getty Images